Help with troubleshooting DRLs
Thread Starter
Instructor
Joined: Oct 2014
Posts: 110
Likes: 30
Help with troubleshooting DRLs
I have a 2000 convertible with 14,000 miles on it. Was a garage queen up until about 1 year ago, is now my DD.
Only mods are window valet, LED exterior bulbs, and hyperflash harness.
No mods have been done in the last six months. All lights were functioning properly up until about 3 days ago.
Out of the blue, I notice the following:
1. DRLs not working
2. Approach lights no longer include reverse lights, all others work
3. Parking lights, head, and fog lights work when switched on
4. When lights are switched on, left turn signal indicator light is on, steady-not flashing
5. Turning on left turn signal does nothing, no flash
6. Right turn signal functions normally, with lights on or off
7. Hazard lights function normally with lights off, do not function when lights are on
8. Reverse lights work when in reverse
9. No CELs
I don’t really care if DRLs work, but I need turn signals when headlights are on.
Any ideas on how to start troubleshooting this problem?
Only mods are window valet, LED exterior bulbs, and hyperflash harness.
No mods have been done in the last six months. All lights were functioning properly up until about 3 days ago.
Out of the blue, I notice the following:
1. DRLs not working
2. Approach lights no longer include reverse lights, all others work
3. Parking lights, head, and fog lights work when switched on
4. When lights are switched on, left turn signal indicator light is on, steady-not flashing
5. Turning on left turn signal does nothing, no flash
6. Right turn signal functions normally, with lights on or off
7. Hazard lights function normally with lights off, do not function when lights are on
8. Reverse lights work when in reverse
9. No CELs
I don’t really care if DRLs work, but I need turn signals when headlights are on.
Any ideas on how to start troubleshooting this problem?
Safety Car
Joined: Mar 2015
Posts: 3,638
Likes: 245
I have a 2000 convertible with 14,000 miles on it. Was a garage queen up until about 1 year ago, is now my DD.
Only mods are window valet, LED exterior bulbs, and hyperflash harness.
No mods have been done in the last six months. All lights were functioning properly up until about 3 days ago.
Out of the blue, I notice the following:
1. DRLs not working
2. Approach lights no longer include reverse lights, all others work
3. Parking lights, head, and fog lights work when switched on
4. When lights are switched on, left turn signal indicator light is on, steady-not flashing
5. Turning on left turn signal does nothing, no flash
6. Right turn signal functions normally, with lights on or off
7. Hazard lights function normally with lights off, do not function when lights are on
8. Reverse lights work when in reverse
9. No CELs
I don’t really care if DRLs work, but I need turn signals when headlights are on.
Any ideas on how to start troubleshooting this problem?
Only mods are window valet, LED exterior bulbs, and hyperflash harness.
No mods have been done in the last six months. All lights were functioning properly up until about 3 days ago.
Out of the blue, I notice the following:
1. DRLs not working
2. Approach lights no longer include reverse lights, all others work
3. Parking lights, head, and fog lights work when switched on
4. When lights are switched on, left turn signal indicator light is on, steady-not flashing
5. Turning on left turn signal does nothing, no flash
6. Right turn signal functions normally, with lights on or off
7. Hazard lights function normally with lights off, do not function when lights are on
8. Reverse lights work when in reverse
9. No CELs
I don’t really care if DRLs work, but I need turn signals when headlights are on.
Any ideas on how to start troubleshooting this problem?
Drifting
Joined: Nov 2016
Posts: 1,660
Likes: 365
From: SF Bay Area
Possible culprits:
Bad left turn signal socket. Check the front left turn signal socket for corrosion and possible shorting of wires.
Bad MFS. No real troubleshooting available other than simply replacing it.
Approach lights and DRLs not working point to fuse 2 in the engine compartment fuse box being blown. This single fuse supplies power to reverse approach lights and DRLs.
Bad left turn signal socket. Check the front left turn signal socket for corrosion and possible shorting of wires.
Bad MFS. No real troubleshooting available other than simply replacing it.
Approach lights and DRLs not working point to fuse 2 in the engine compartment fuse box being blown. This single fuse supplies power to reverse approach lights and DRLs.
Melting Slicks
Joined: Aug 2014
Posts: 2,468
Likes: 460
From: East Windsor NJ
Try swapping for regular bulbs, Could be blown fuse etc. I'd start with the bulb,.
